Company News

See you at IMS 2024!

Century Seals is attending the International Microwave Symposium Trade Show from Monday June 17 through Thursday June 20, 2024. We are still open for business during this time, however, it may take a little longer than usual for us to respond to messages and requests. If you're at the show, p...

Celebrating Delaware Manufacturing

Century Seals is proud to be a part of the Delaware State Chamber of Commerce's "Coolest Thing Made In Delaware" contest! The competition highlights the multitude and the variety of products that are made in Delaware. We are a small state, but our manufacturing output is pretty da...

Holiday Schedule

So that our staff may celebrate the holidays with loved ones and enjoy a well-earned break, Century Seals will be closed from December 23, 2023 through January 1, 2024. We'll be back on Tuesday January 2.  Wishing all of our friends a Safe, Peaceful, and Happy Holiday, Merry Christmas,...

Happy Thanksgiving!

Wishing all of our friends in the United States a Peaceful, Safe, and Happy Thanksgiving!   In observance of the holiday, Century Seals will be closed on Thursday November 23 and Friday November 24. We'll be back on Monday November 27.

Veterans Day 2023

In observance of Veterans Day, Century Seals will be closed on Friday 10 November, 2023. We extend our sincere gratitude to all Veterans for their service and for the sacrifices that they and their families have made.

Century Seals - Your Trusted Source for Hermetic Packaging

For over twenty years, Century Seals, Inc. has been a trusted manufacturer of glass to metal hermetic components and housings for aerospace, defense, microwave, RF, energetics, and many other industries. Made In USA at our HQ in Seaford, Delaware Built to order Plating availabl...

Happy Labor Day, and Thank You to our team!

On this Labor Day, Century Seals, Inc. would like to take an opportunity to say a heartfelt THANK YOU to all of our team members! You are a small group but your fierce dedication to making our company the best it can be is HUGE and does not go unnoticed. We appreciate you and we sincerely thank yo...

Welcome to the New & Improved!

Here at Century Seals, we are dedicated to ensuring that our products, processes, and services reflect the latest innovations and technologies. However, we recently realized that our website was maybe a bit lacking in that area, and that it was time to do something about it! Welcome to the New &a...

Looking For Feedthroughs?

Looking for hermetic feedthroughs? Century Seals, Inc. has you covered!  Small Orders Accepted (and large orders, too!) Made In USA at our ISO 9001:2015 manufacturing facility in Seaford, Delaware Built to order to your drawing, or we can custom design a perfect fit Multiple sizes, ...

Happy Birthday to Century Seals!

As we rang in the New Year, Century Seals celebrated another milestone - our 23rd Birthday! Century Seals was "born" on January 1, 2000. We would not be here today without our two greatest assets: Our superhero staff, and our awesome customers, some of whom have been with us since the start. We ...

Thank You, First Responders!

On the morning of Wednesday October 12, 2022, a building directly adjacent to the Century Seals facility caught fire and burned to the ground. Out of an abundance of caution and for the safety of our employees, we decided to suspend production for the day and safely evacuated all of our personnel. T...

Metal Plating

Did you know we also offer a metal plating service through our subsidiary Fin-Tec? Give us a call to find out how we can help you meet your plating needs.

Gold Line at Fin-Tec

The Hard Gold line has been installed and is now a functional service that Century Seals offers through our wholly owned subsidiary Fin-Tec. Please let us know if you have questions or visit

We passed our ISO Audit

Century Seals is now registered to the ISO 9001:2015 standard. Find our certification under the "Documents & Downloads" tab.

Your One Stop Shop

At Century Seals we are proud to offer competitive pricing and lead times. Our in house plating shop, Fin-Tec, means your parts stay local which also saves lead time. Ask us about our plating specs for your next project requirement.

Machined Packages

Need a machined Kovar package? We can provide you with a highly specialized and precise tolerance package to meet any of your custom needs.